/* SAB program-card share buttons — v1.0 (2026-10-03)
 * Injects a small share button into every .sab-card on the page.
 * Uses the Web Share API when available (mobile), otherwise copies the
 * card's "Learn more" link to the clipboard with a toast confirmation.
 * Loaded as an external file via wp_enqueue_script (see AGENTS.md: WordPress
 * entity-encodes inline shortcode JS, so this must stay external). */
(function () {
  "use strict";

  function toast(msg) {
    var t = document.querySelector(".sab-toast");
    if (!t) {
      t = document.createElement("div");
      t.className = "sab-toast";
      t.setAttribute("role", "status");
      document.body.appendChild(t);
    }
    t.textContent = msg;
    t.classList.add("show");
    clearTimeout(t._hideTimer);
    t._hideTimer = setTimeout(function () { t.classList.remove("show"); }, 2200);
  }

  function copyText(txt, cb) {
    function done() { if (cb) cb(); }
    if (navigator.clipboard && navigator.clipboard.writeText) {
      navigator.clipboard.writeText(txt).then(done, function () { legacyCopy(txt); done(); });
    } else {
      legacyCopy(txt);
      done();
    }
  }

  function legacyCopy(txt) {
    var ta = document.createElement("textarea");
    ta.value = txt;
    ta.style.position = "fixed";
    ta.style.opacity = "0";
    document.body.appendChild(ta);
    ta.select();
    try { document.execCommand("copy"); } catch (e) { /* noop */ }
    document.body.removeChild(ta);
  }

  var SHARE_SVG = '<svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">'
    + '<circle cx="18" cy="5" r="3"/><circle cx="6" cy="12" r="3"/><circle cx="18" cy="19" r="3"/>'
    + '<line x1="8.59" y1="13.51" x2="15.42" y2="17.49"/><line x1="15.41" y1="6.51" x2="8.59" y2="10.49"/>'
    + "</svg>";

  function bind() {
    var cards = document.querySelectorAll(".sab-card");
    for (var i = 0; i < cards.length; i++) {
      (function (card) {
        if (card.querySelector(".sab-share")) return; // already bound
        var h = card.querySelector("h3");
        var title = h ? h.textContent.trim() : "San Antonio Benefits program";
        var a = card.querySelector(".sab-learn");
        var url = a && a.href ? a.href : window.location.href.split("#")[0];

        var btn = document.createElement("button");
        btn.type = "button";
        btn.className = "sab-share";
        btn.setAttribute("aria-label", "Share " + title);
        btn.title = "Share this program";
        btn.innerHTML = SHARE_SVG;
        btn.addEventListener("click", function (ev) {
          ev.preventDefault();
          ev.stopPropagation();
          var text = title + " \u2014 free help in San Antonio";
          if (navigator.share) {
            navigator.share({ title: title, text: text, url: url }).catch(function () { /* dismissed */ });
          } else {
            copyText(url, function () { toast("Link copied \u2014 paste it anywhere to share"); });
          }
        });
        card.appendChild(btn);
      })(cards[i]);
    }
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", bind);
  } else {
    bind();
  }
})();